function Pack(pNum)
{
   this.pNum = pNum;
   this.pubDate = getPubDate(unescape(viewResults[pNum].viewCol5));
   this.isbn = unescape(viewResults[pNum].viewCol6);
   this.title = unescape(viewResults[pNum].viewCol2);
   this.price = unescape(viewResults[pNum].viewCol7);
   this.series = unescape(viewResults[pNum].viewCol15);
   this.subject = unescape(viewResults[pNum].viewCol13);
   this.area = unescape(viewResults[pNum].viewCol14);
   this.buyInspect = "";
   //this.passValues = this.isbn + "|" + this.title + "|" + this.price;
   //this.passBuy = this.isbn + "|" + this.title + "|" + this.price + "|B";
   //this.passInspect = this.isbn + "|" + this.title + "|" + this.price + "|I";
   //this.idString = "";
   //this.addtoValue = "Num_" + unescape(viewResults[pNum].viewCol6);
   //this.innerID = "buypackid" + pNum;
  
   this.inspectionCopies = ((viewResults[pNum].viewCol17 == 1)||(viewResults[pNum].viewCol17 == "1"));
  
   this.inspectVar = "&bi=0";
   if(this.inspectionCopies)this.inspectVar = "&bi=1";
   this.titleLink = "/primary/onix/domisbn/" + this.isbn + "?open&div=" + args['div'].replace(/\s/ig,"+") + "&cat=" + args['cat'].replace(/\s/ig, "+") + this.inspectVar + "&ed=site/primed31.nsf";
   
   this.priceAvailability = new PriceAvailability(this.isbn);    
   if(this.priceAvailability.price) this.price = this.priceAvailability.price;
    
  if(typeof Pack._initialized == "undefined")
  {
  
   Pack.prototype.isEClub = function()
   {          
        if(typeof division == "undefined")
        {
          var division = "";
          if(args['div'])division = unescape(args['div']);
        }
//alert(division + ">" + this.subject + ">" + this.area);
          //var eClub = new eClubDiscountList();
          return eClub.isDiscounted(division + ">" + this.subject + ">" + this.area);
    };
    
    Pack.prototype.eClubPrice = function()
    {
      if(this.price.indexOf('$') == -1) 
      {
          var nPrice = Number(this.price);
      } else {
          var nPrice = Number(this.price.substring(1));
      }
        
      return (nPrice * 0.9).toFixed(2);
    };
      
    Pack.prototype.printPack = function(oCart)
    {
        document.write('<div class="lPack" id="book',this.pNum,'">');
        document.write('<p class="lTitle">');
        document.write('<a href="',this.titleLink,'">',this.title,'</a>');
        document.write('</p>'); 
        
        var publishStr = '';
        if(this.published() == false)
        {
          //  publishStr = '<br /><b>Coming ' + this.pubDate + '</b>'; 
        }
        //alert(this.pubDate);
        document.write('<p class="lPrice">AU',this.price,' | ',isbn10to13(this.isbn),' ',publishStr,'</p>');
        
        if(this.priceAvailability.available && this.isEClub()&&((typeof checkTC != "undefined")&&(checkTC == true)))
        {
            document.write('<p class="eClubPrice">eClub Price: AU$',this.eClubPrice(),'</p>');
        }
        
        if(!this.priceAvailability.available)
        {
            document.write('<p class="notAvailable">',this.priceAvailability.getShipDateString(),'</p>');
        }
        
        if(oCart.isIsbnInCart(this.isbn))
            { 
                if(!oCart.isItemInspect(this.isbn))
                {
                    document.write('<p class="addedToOrder">',oCart.getItemQuantity(this.isbn),'<span>added to order</span></p>');
                } else {
                        document.write('<a class="inspectApproval inspectedApproval">Inspect on Approval</a>');
	                   }
    	      
	            document.write('<a class="removeFromOrder" onclick="removeItemFromCart(event)" href="#">remove from order</a>');
        } else {
                    
                    
                    document.write('<p class="buyPack">');
                    document.write('<input type="text" class="lpUnits" name="pUnits" onchange="thisVal=this.value;" value=""/>');
                    //document.write('<input type="hidden" name="Hide_',this.isbn,'" id="Hide_',this.isbn,'" value="',this.passBuy,'">');
                    document.write('<label for="pUnits">Units</label>');
                    var classArray = new Array();
                    var anchorClass = "";
                    if(!this.priceAvailability.available)classArray.push('packRequest');
                    if(classArray.length != 0)anchorClass = 'class="' + classArray.join(' ') + '"';
                    document.write('<a href="#" onclick="addItemToCart(event)" ',anchorClass,' >add to cart</a>');
                    document.write('</p>');
            
                    // inspect
                    if (this.inspectionCopies) { // inspection copies only allowed if col17 = 1
                        document.write('<a href="#" class="inspectApproval" onclick="removeItemFromCart(event)">Inspect on Approval</a>');    
                    }    
               }
        
        document.write('</div>');
    };
    
    Pack.prototype.updatePack = function(packContainer, oCart)
    {
        packContainer.innerHTML = "";
        this.attachPack(packContainer, oCart);
    };
    
    Pack.prototype.attachPack = function(packContainer,oCart)
    {     
        var pTitle = document.createElement('p');
        pTitle.className = "lTitle";
        var pTitleLink = document.createElement('a');
        pTitleLink.setAttribute('href','#');
        pTitleLink.appendChild(document.createTextNode(this.title));
        pTitle.appendChild(pTitleLink);
        packContainer.appendChild(pTitle);
      
        var pPrice = document.createElement('p');
        pPrice.className = "lPrice";
        
        pPrice.appendChild(document.createTextNode('AU' + this.price + ' | ' + isbn10to13(this.isbn)));
        
        packContainer.appendChild(pPrice);
      
        if(this.isEClub()&&((typeof checkTC != "undefined")&&(checkTC == true)))
        {
            var ePriceContainer = document.createElement('p');
            ePriceContainer.className = "eClubPrice";
            ePriceContainer.appendChild(document.createTextNode('eClub Price: AU$' + this.eClubPrice()));
            packContainer.appendChild(ePriceContainer);            
        }
        this.priceAvailability = new PriceAvailability(this.isbn);
        
        if(!this.priceAvailability.available)//if book is not available
        {
                    var oNotInStock = document.createElement('p');
                    oNotInStock.className = 'notAvailable';
                    oNotInStock.appendChild(document.createTextNode(this.priceAvailability.getShipDateString()));
                    packContainer.appendChild(oNotInStock);                   
        } 
        
        if(oCart.isIsbnInCart(this.isbn))
            {
                if(!oCart.isItemInspect(this.isbn))
                {
                    var addedToOrderContainer = document.createElement('p');
                    addedToOrderContainer.className = "addedToOrder";
                    //addedToOrderContainer.appendChild(document.createTextNode('added to order'));
                    addedToOrderContainer.innerHTML = oCart.getItemQuantity(this.isbn) + "<span>added to order</span>";
                    packContainer.appendChild(addedToOrderContainer);
                } else {
                            var inspectedApprovalContainer = document.createElement('a');
                            inspectedApprovalContainer.className = "inspectApproval inspectedApproval";
                            //inspectedApprovalContainer.setAttribute('href','#');
                            var inspectedApprovalText = document.createTextNode('Inspect on Approval');
                            inspectedApprovalContainer.appendChild(inspectedApprovalText);
                            packContainer.appendChild(inspectedApprovalContainer); 
                        }
                var removeContainer = document.createElement('a');
                var classArray = new Array();
                var anchorClass = "";
                classArray.push("removeFromOrder");
                if(!this.priceAvailability.available)classArray.push('packRequest');
                if(classArray.length != 0)removeContainer.className = classArray.join(' ');
                removeContainer.setAttribute('href','#'); 
                if(document.attachEvent)
                {
                   removeContainer.onclick = function(oEvent){removeItemFromCart();}; 
                } else {
                            removeContainer.setAttribute('onclick','removeItemFromCart(event)'); 
                       }               
                var removeContainerText = document.createTextNode('remove from order');
                removeContainer.appendChild(removeContainerText);   
                packContainer.appendChild(removeContainer);
          } else {
                     var buyPack = document.createElement('p');
                     buyPack.className = "buyPack";
                     
                     var lpUnits = document.createElement('input');
                     lpUnits.setAttribute('type','text');
                     lpUnits.setAttribute('name','Num_' + this.isbn);
                     lpUnits.setAttribute('onchange', 'thisVal=this.value;');
                     lpUnits.className = "lpUnits";
                     buyPack.appendChild(lpUnits);
                     
                     var lpUnitsLabel = document.createElement('label');
                     lpUnitsLabel.setAttribute('for','lpUnits');
                     var lpUnitsLabelText = document.createTextNode('Units');
                     lpUnitsLabel.appendChild(lpUnitsLabelText);
                     buyPack.appendChild(lpUnitsLabel);
                     /*
                     var hiddenInput = document.createElement('input');
                     hiddenInput.setAttribute('type','hidden');
                     hiddenInput.setAttribute('name','Hide_' + this.isbn);
                     hiddenInput.setAttribute('id','Hide_' + this.isbn);
                     hiddenInput.setAttribute('value',this.passBuy);
                     buyPack.appendChild(hiddenInput);
                     */
                     var addToCartContainer = document.createElement('a');
                     var classArray = new Array();
                     var anchorClass = "";
                     if(!this.priceAvailability.available)classArray.push('packRequest');
                     if(classArray.length != 0)addToCartContainer.className = classArray.join(' ');
                     addToCartContainer.setAttribute('href','#');
                     if(document.attachEvent)
                     {
                        addToCartContainer.onclick = function(oEvent){addItemToCart();}; 
                     } else {
                                addToCartContainer.setAttribute('onclick','addItemToCart(event)'); 
                            }
                     //addToCartContainer.setAttribute('onclick','changeInnerBuy(this,"' + this.innerID + '",' + thisVal + ',"' + this.isbn + '");return false;');
                     //addToCartContainer.onclick = function(){changeInnerBuy(this,this.innerID,thisVal,this.isbn);};
                     addToCartContainer.appendChild(document.createTextNode('add to cart'));
                     buyPack.appendChild(addToCartContainer);
                     
                     packContainer.appendChild(buyPack);
                     
                     
                     if (this.inspectionCopies) { // inspection copies only allowed if col17 = 1
                        var inspectApprovalContainer = document.createElement('a');
                        inspectApprovalContainer.className = "inspectApproval";
                        if(document.attachEvent)
                        {
                           inspectApprovalContainer.onclick = function(oEvent){addItemToCart();}; 
                        } else {
                                    inspectApprovalContainer.setAttribute('onclick','addItemToCart(event)'); 
                               }
                        inspectApprovalContainer.setAttribute('href','#');
                        inspectApprovalContainer.appendChild(document.createTextNode('Inspect on Approval'));
                        packContainer.appendChild(inspectApprovalContainer);  
                     }
                }
                       
    };
    
     Pack.prototype.getCartDivCatStr = function()
     {
          var oStr = new Array();
          if(typeof division != "undefined")oStr.push(division);
          if(typeof category != "undefined")
          {
            if(typeof category == "object")
            {
              oStr.push(category[0]);
              oStr.push(category[1]);
            } else {
              oStr.push(category);
            }
          }
          return oStr.join('>');
    };
    
Pack.prototype.addToCart = function(oCart,quantity,requestClass)
{
    if(this.inspectionCopies)
    {
        var inspecAvailable = "I";
    } else {
                var inspecAvailable = "B";
           }
        
    this.priceAvailability = new PriceAvailability(this.isbn,quantity);  
       
    if(this.priceAvailability.available)
    {
        var price = this.price;
    } else {                    
                var price = '0';
                if(this.buyInspect.toLowerCase() == 'i')price = this.price;
           }
    /*            
    //variable to store messages       
    var message = null;
          
    if((!this.priceAvailability.available) && (oCart.hasUnavailableBooks() == false) && (requestClass != null && requestClass.indexOf('packRequest') != -1))
    {
        message = 'Items that are not in stock are added to the shopping cart as requests.';
        message += '\nThe cost of these items does not affect the total cost of the order.';
        message += '\nOur sales department will contact customers when processing orders in order to estimate the availability and delivery of such items.';
        message += '\nPlease proceed to check out for further details.';
    }
          
    if((!this.priceAvailability.available) && (requestClass == null))
    {  
        message = 'The following books are not available at the quantity requested:';
        message += '\n\n- ' + this.title + ' (' + this.isbn + ')';
        message += '\n\n' + 'They have been added to the shopping cart as requests.'; 
        message += '\n\nItems that are not in stock are added to the shopping cart as requests.';
        message += '\nThe cost of these items does not affect the total cost of the order.';
        message += '\nOur sales department will contact customers when processing orders in order to estimate the availability and delivery of such items.';
        message += '\nPlease proceed to check out for further details.';
    }
    */             
    oCart.addToCart(this.isbn,this.title,price,(inspecAvailable + this.buyInspect),quantity,this.getCartDivCatStr(),this.priceAvailability.available);
    
    oCart.updateShoppingSummary();
    
    //if(message)alert(message);
};
    
    Pack.prototype.removeFromCart = function(oCart)
    {
       oCart.deleteFromCart(this.isbn);  
       oCart.updateShoppingSummary();
    };
    
Pack.prototype.published = function()
{
    if(!this.pubDate)return false;
            
    var pubDate = new Date(Date.parse(this.pubDate));
    var today = new Date(); 
            
    if(pubDate > today)return false;
            
    return true;                       
}; 
    /*
    Pack.prototype.isPackInCart = function()
      {
         if (!thisCookie || thisCookie.indexOf(this.isbn)==-1 || typeof thisArrayCookie == "undefined") return "not in cart";
		      
         for (var i=0;i<thisArrayCookie.length;i++) 
         { 
             if (thisArrayCookie[i][0] == this.isbn)
             {
                if (thisArrayCookie[i][3] == "B") 
                {
                  return thisArrayCookie[i][4];
                } else {
                  return "not b";
                }
             }
          }
       };
       */
  }
  Pack._initialized = true;
  //this.inCart = this.isPackInCart();
}